Letermovir Tablets

Uses of Letermovir Tablets:

It is used to prevent cytomegalovirus (CMV) infection in people who have had a stem cell transplant.

What do I need to tell my doctor BEFORE I take Letermovir Tablets?

If you have an allergy to this medicine (letermovir tablets) or any part of this medicine (letermovir tablets).

If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what
signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.

If you have any of these health problems: Kidney disease or liver disease.

This is not a list of all drugs or health problems that interact with this medicine (letermovir tablets).

Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check
to make sure that it is safe for you to take this medicine (letermovir tablets) with all of your drugs and health problems. Do not start, stop, or change the dose of
any drug without checking with your doctor.

What are some things I need to know or do while I take Letermovir Tablets?

Tell all of your health care providers that you take this medicine (letermovir tablets). This includes your doctors, nurses, pharmacists, and dentists.

This medicine interacts with many other drugs. The chance of side effects may be raised or how well this medicine (letermovir tablets) works may be lowered. Check with
your doctor and pharmacist to make sure that it is safe for you to take this medicine (letermovir tablets) with all of your other drugs (prescription or OTC, natural
products, vitamins).

This medicine may affect how much of some other drugs are in your body. If you are taking other drugs, talk with your doctor. You may need to
have your blood work checked more closely while taking this medicine (letermovir tablets) with your other drugs.

Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using this medicine (letermovir tablets)
while you are pregnant.

Tell your doctor if you are breast-feeding. You will need to talk about any risks to your baby.

How is this medicine (Letermovir Tablets) best taken?

Use this medicine (letermovir tablets) as ordered by your doctor. Read all information given to you. Follow all instructions closely.

Take with or without food.

Swallow whole. Do not chew, break, or crush.

To gain the most benefit, do not miss doses.

Keep taking this medicine (letermovir tablets) as you have been told by your doctor or other health care provider, even if you feel well.

Take this medicine (letermovir tablets) at the same time of day.

What do I do if I miss a dose?

Take a missed dose as soon as you think about it.

If it is close to the time for your next dose, skip the missed dose and go back to your normal time.

Do not take 2 doses at the same time or extra doses.

If you are not sure what to do if you miss a dose, call your doctor.

See also:

What are some side effects that I need to call my doctor about right away?

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your
doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:

Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing;
tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue,
or throat.

Swelling in the arms or legs.

What are some other side effects of Letermovir Tablets?

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical
help if any of these side effects or any other side effects bother you or do not go away:

See also:

If OVERDOSE is suspected:

If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was
taken, how much, and when it happened.

How do I store and/or throw out Letermovir Tablets?

Store in the original container at room temperature.

Store in a dry place. Do not store in a bathroom.

Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.

Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your
pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.

Consumer information use

If your symptoms or health problems do not get better or if they become worse, call your doctor.

Do not share your drugs with others and do not take anyone else's drugs.

Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.

Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.

Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about this medicine (letermovir tablets), please talk
with your doctor, nurse, pharmacist, or other health care provider.

If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was
taken, how much, and when it happened.